软启动阀和开关阀

软启动阀用于调控气动系统中的压力。压力缓慢增至一定水平，设备实现相应的进气。达到定义的压力水平后，阀立即切换到 100%。排气亦通过此阀进行，以此来避免设备受损。软启动阀广泛应用于工厂自动化、汽车工业和航空工业等领域的各类气动系统中。

开关阀用于控制气动系统中的空气流量。它既可启动或停止空气流，也可将空气流调至特定程度。开关阀一般在气动系统中使用，用于控制气动元件的运动行为。

这两种阀在气动系统中具有重要作用，因为它们可以确保系统正常运行，防止系统及其元件损坏。

MS 系列阀

MS 系列提供四种规格的手控、气控和电控开关阀和软启动阀。MS 系列阀采用集成式传感器以及经过认证的气动设备安全排放安全阀，可处理较大流量。它们是所有应用的理想选择。

MS 系列气控和电控阀可配置为搭载或不搭载集成软启动功能。此外还提供作为独立设备使用的气控阀和电控阀。

MS 系列采用模块化系统，因此这些阀可以轻松安装在气源处理装置中。

视具体配置而定，产品也可在 1 区、2 区、21 区和 22 区等存在爆炸危险的区域使用，且已通过 UL 认证。

MS basic 系列
MS 系列

Individual devices

Devices of the PVEL series can be operated pneumatically and manually and are available as pressurisation and exhaust valves for pressure ranges up to 50 bar. In addition, with the HE-LO series, Festo provides shut-off valves in accordance with OSHA 29 CFR 147 "Control of Hazardous Energy" of the US Department of Labor.

Individual devices

Possible applications for soft-start valves

Soft-start valves can be used in many possible compressed air preparation applications in pneumatic systems. Here are a few examples of where valves from our various series are needed:

• The valves can be used to regulate the pressure in a pneumatic system to ensure that it remains within a certain range.
• The excess pressure released by the valves can be needed to reduce energy consumption in pneumatic systems. This can help to lower the load on the system and reduce the amount of energy required to operate it.
• Valves can protect pneumatic devices against overpressure, which can also cause damage or failures. In some cases, this can even prevent explosions in pneumatic systems by releasing excess pressure before it reaches a dangerous level.

Actuating valves

Valves can be actuated manually, pneumatically and electrically. Manually operated valves are usually opened and closed mechanically using levers or handwheels. Valves that are actuated pneumatically are controlled using compressed air. Electrically actuated valves, on the other hand, are actuated using solenoid valves. The type of actuation depends on the specific requirements for the application and should be chosen depending on the requirements for speed, precision and safety of the control system.